Wrench.



No. 632,082. Patented Aug. 29, I899.

A. ANDERSON.

(Application filed May 24, 1899.)

010 Model.)

, 1 lNVENTOH A TTOHNEYS Nl'lED STATES ALEXANDER ANDERSON, OF GREENVILLE,MISSISSIPPI.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 632,082, dated August29, 1899.

Application filed May 24,1899. Serial No. 718,094. (No model.)

To all whom it may concern.-

Beit known that I, ALEXANDER ANDERSON, of Greenville, in the county ofWashington and State of Mississippi, have invented a new and ImprovedWrench, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved wrenchwhich is simple and durable in construction and easily adjusted toreadily fit and securely grip an object, said wrench being moreespecially designed for' use as a combination-tool on either pipes ornuts.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of my invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of theimprovement. Fig. 2 is an edge viewof the same. Fig. 3 is a sectional plan view of the same on the line 3 3in Fig. 1, and Fig. at is a similar View of the same with parts in adifferent position.

The improved wrench is provided with a shank A, on one end of which issecured a fixed jaw B and on the other end is arranged a suitable handle0. On the shank A is fitted to slide loosely a movable jaw D, providedfor this purpose with bearings D, placed a suitable distance apart andloosely fitting on the shank, but being held against turning thereon. Inthe top face of the jaw D is formed a dovetailed groove D adapted toreceive a correspondingly-shaped tongue E, formed on a toothedcheek-piece E, arranged directly opposite the teeth B on the inner faceof the fixed jaw B. The cheek-piece E is used when employing the wrenchon pipes and is removed from the movable jaw D when the wrench isintended for use on nuts and similar objects.

The shank is made rectangular in cross-section, as plainly indicated inFigs. 3 and 4, the long sides A being made fiat or blank and the narrowsides A being threaded, as is plainly indicated in the drawings.

The bearings D have their openings shaped corresponding to the crosssection of the shank A to freely slide thereon, and between saidbearings is held loosely a nut or sleeve F, mounted to slide on theshank when in one position, as shown in Fig. 4, and adapted to be lockedagainst sliding movement on the shank when in the position shown in Fig.3 that is, with a quarter-turn given to the nut from the position shownin Fig. 4 to that shown in Fig. 3. For this purpose the nutis formed inits opening with two oppositely-arranged flat or blank sides F, placed adistance apart corresponding to the distance between the threaded sidesA of the shank and with the two other sides F of the nut formed withsegmental threads adapted to mesh with the threads of the sides A Theperipheral surface of a portion of the nut is formed withlongitudinally-extending ribs F, of which the end ribs F F are adaptedto abut against the sides of the jaw D to limit the turning movement ofthe nut on the shank, so that the nut occupies either the position shownin Fig. 3 or that shown in Fig. 4.

Now it is evident that when the operator turns the nut to the positionshown in Fig. 4 the threaded sides F are opposite the flat sides A ofthe shank A and a distance away from the same, while the fiat sides F ofthe nut are opposite the threaded sides A of the shank, and as the sidesF fit loosely over said threads on the sides A it is evident that thenut is free to slide on the shank with the jaw D when the latter ismoved up or down on the shank to or from the object to be gripped. Assoon as the object is engaged between the two jaws B and D the operatorgives a quarter-turn to the nut F, so as to move the threaded sides F inmesh'with the threaded sides A of the shank to hold the nut, andconsequently the jaw D, against sliding movement on the shank.

From the foregoing it is evident that the nut is slidable on the shankwhen in one position and locked against sliding when in the otherposition, as previously explained, so that in one case the jaw can bemoved and in the other position the jaw is locked against movement.

The device is very simple and durable in construction, and the jaws areso arranged that they are not liable to get out of order,

' and at the same time a secure gripping of the the jaw D from becomingaccidentally detached from the shank.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. A wrench, comprising a shank rectangular incross-section, and having a handle at one end and a fixed jaw at theother, the narrow sides of the shank being threaded and the wide sidesbeing flat or blank, a movable jaw having spaced guideways to receivethe shank and upon which it is slidable, and a nut held loosely betweensaid g uideways to move bodily with the jaw, said nut being mounted toturn on the shank and its interior surface being formed with oppositeflat sides and opposite threaded sides, the flat or blank sides of thenut being spaced apart to freely ride over the threaded sides of theshank, and the threaded sides of the nut bein g adapted to move in meshwith the threaded sides of the shank, substantially as shown anddescribed.

2. A wrench, comprising a shank rectangular in cross-section, and havinga handle at one end and a fixed jaw at the other, the narrow sides ofthe shank being threaded and the wide sides being fiat or blank, amovable jaw having spaced guideways to receive the shank and upon whichit is slidable, a nut held loosely between said guideways to move bodilywith the jaw, said nut being mounted to turn on the shank, and itsinterior surface being formed with opposite flat sides and oppositethreaded sides, the flat or blank sides of the nut being spaced apart tofreely ride over the threaded sides of the shank, the threaded sides ofthe nut being adapted to move in mesh with the threaded sides of theshank, and stop-lugs on the exterior of the nut and adapted toabut onopposite faces of the movable jaw, to limit the turning of the nut onthe shank, substantially as shown and described.

ALEXANDER, ANDERSON.

Witnesses:

B. P. SHELBY, 'l. W. MCCOY.

